CN104567190B - air cooled refrigerator - Google Patents

Abstract

The invention provides a kind of wind cooling refrigerator, including refrigerating chamber and with the cold room of the laterally adjacent setting of described refrigerating chamber, described wind cooling refrigerator also includes the hothouse with autonomous closure space, and it is arranged in described cold room in lower space.The wind cooling refrigerator of the present invention arranges independent sealed hothouse at cooling compartment, position by reasonable Arrangement hothouse, can make that there is in hothouse relatively low relative humidity and relatively low temperature, the environment of this low temperature and low humidity is particularly suitable for dried food and nuts food materials and preserves, and dried food and nuts both can have been avoided to make moist it is also ensured that the nutritional labeling of dried food and nuts.

Description

air cooled refrigerator

technical field

The invention relates to the technical field of refrigerators, in particular to an air-cooled refrigerator.

Background technique

Along with consumers' expectations for a healthier lifestyle, the proportion of dry food ingredients such as wolfberry, tea, shiitake mushrooms, longan, and cordyceps sinensis is gradually increasing in the diet structure. However, these dry food ingredients are very difficult to store. If they are stored at room temperature, under the condition of poor ventilation, they will easily change color and deteriorate after a long time of storage, resulting in the loss of nutrients; The impact of food leads to dampness, mold and deterioration. How to store dry food ingredients for a long time is a problem to be solved.

Contents of the invention

An object of the present invention is to provide an air-cooled refrigerator with a drying chamber to provide an environment suitable for long-term preservation of dry food ingredients in view of the above-mentioned defects in the prior art.

In order to achieve the above object, the present invention provides an air-cooled refrigerator, comprising a freezer and a refrigerator laterally adjacent to the freezer, the air-cooled refrigerator also includes a drying chamber with an independent closed space, which is set In the lower space of the refrigerating chamber.

Optionally, the drying room is made of a drawer-type sealed container, including:

a drawer body for holding items to be stored; and

The female seat box has a back panel, a top panel, a bottom panel and two opposite lateral side panels combined with the back panel at respective rear ends to form a cavity for receiving the drawer body in a drawable manner.

Optionally, the bottom plate of the female base box of the drying chamber is arranged adjacent to or rests on the bottom surface of the inner space of the refrigerating chamber.

Optionally, the drying chamber has an air inlet through which cooling air flows into the drying chamber, and the drying chamber is controllably communicated with the freezing chamber through the air inlet.

Optionally, the air inlet is arranged on a lateral side plate of the female base box adjacent to the side wall of the freezing chamber.

Optionally, an electric damper is set at the air inlet.

Optionally, the drying chamber further has an air return port through which air in the drying chamber flows out of the drying chamber, and the air return port is arranged on the back plate of the drying chamber.

Optionally, a one-way damper is set at the air return port.

Optionally, the drawer body is provided with a drawer door for pulling the drawer body, and a sealing strip is provided at an edge of the drawer door.

Optionally, the air-cooled refrigerator also includes:

a temperature sensor disposed in the drying chamber for sensing the temperature in the drying chamber; and

a humidity sensor, arranged in the drying chamber, for sensing the humidity in the drying chamber,

The electric damper is configured to be opened or closed in a controlled manner according to the temperature sensed by the temperature sensor and/or the humidity sensed by the humidity sensor.

The air-cooled refrigerator of the present invention is equipped with an independent sealed drying room inside the refrigerating room. By rationally arranging the position of the drying room, the drying room has a lower relative humidity and a lower temperature. This low-temperature and low-humidity environment is especially suitable for dry goods and ingredients Preservation can not only prevent the dry goods from getting wet, but also ensure the nutritional content of the dry goods.

Furthermore, in the preferred embodiment of the present invention, the cooling airflow in the freezing chamber is introduced into the drying chamber, without the need to separately set up an air duct for the drying chamber.

Further, in the preferred embodiment of this proposal, the cooling air flow comes from the lower part of the freezer compartment of the air-cooled refrigerator. Since the air flow entering the freezer compartment will condense during the flow from top to bottom, the cooling air flow flowing into the drying chamber The absolute humidity is low to avoid adverse effects on the drying room.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic front view of an air-cooled refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic sectional view taken along line A-A in Fig. 1;

Fig. 3 is a schematic partial enlarged view of place C shown in Fig. 2;

Fig. 4 is a schematic air duct system diagram when the air inlet damper of the drying chamber of the air-cooled refrigerator is closed according to an embodiment of the present invention;

Fig. 5 is a schematic air duct system diagram when the air inlet damper of the drying chamber of the air-cooled refrigerator is opened according to an embodiment of the present invention;

Fig. 6 is a schematic air duct system diagram taken along the section line B-B in Fig. 1;

Fig. 7 is a schematic diagram of a drying principle of a drying chamber according to an embodiment of the present invention.

detailed description

Fig. 1 is a schematic front view of an air-cooled refrigerator 100 according to an embodiment of the present invention. The air-cooled refrigerator 100 includes a refrigerator compartment 20 and a freezer compartment 10 . A refrigerator door 24 and a freezer door 14 are respectively provided at the front openings of the refrigerator compartment 20 and the freezer compartment 10 to open or close the refrigerator compartment 20 and the freezer compartment 10 respectively. The refrigerating compartment 20 may be disposed laterally adjacent to the freezing compartment 10 . In other words, the refrigerating chamber 20 is disposed on the side of the freezing chamber 10 , and a partition 12 is disposed between the refrigerating chamber 20 and the freezing chamber 10 .

As those skilled in the art can understand, the air-cooled refrigerator 100 of the embodiment of the present invention may further include a refrigeration cycle system and an air duct 60 . The refrigeration cycle system may include, for example, a compressor (not shown in the figure), a condenser (not shown in the figure), a throttling element (not shown in the figure), and an evaporator 50 . The air-cooled refrigerator 100 can also be provided with a fan 40 located in the air duct 60 , and the fan 40 is used to blow the air cooled and dehumidified by the evaporator 50 to the refrigerator compartment 20 and/or the freezer compartment 10 .

In particular, the air-cooled refrigerator 100 may further include a drying chamber 30 having an independent closed space, which is disposed in the inner space of the refrigerating chamber 20 . The drying principle of the drying chamber 30 in the embodiment of the present invention is: after the gas cooled by the cold source is sent into a relatively high-temperature closed environment, as the low-temperature gas gradually heats up in the closed space, the relative humidity decreases, effectively forming a drying effect.

Fig. 7 is a schematic diagram of the drying principle of the drying chamber 30 according to an embodiment of the present invention. Figure 7 shows the relationship between various parameters of humid air in graphs, with the temperature as the ordinate and the moisture content as the abscissa, showing the relative humidity line clusters. Under a certain value, as the temperature increases, The moisture content in humid air increases accordingly. In a closed environment, the moisture content of the air is constant as the temperature rises, so the two points a and b in the figure, because they are on a vertical line, point a (-18°C, 85%RH) It is the low-temperature air state point in the enclosed space after the ventilation is completed, point b (5°C, 15% RH) is the air state point after the gas temperature rises, it can be seen that the temperature rises from -18°C to 5°C, the The relative humidity is reduced from 85% RH to 15% RH, from which it can be seen that as the temperature of the air in the closed environment increases, the relative humidity can be effectively reduced. That is to say, if the closed environment is filled with -18°C gas with a relative humidity of 85%RH, as the temperature rises, when the temperature rises to 5°C, the theoretical relative humidity will drop to 15%RH. And -18°C can generally be the temperature of the freezer compartment 10 or the evaporator 50 in the refrigerator, and 5°C is the temperature of the freezer compartment 20 of the general refrigerator. Utilizing this physical characteristic, the storage environment of the drying room in this embodiment can be realized.

Usually, fruits and vegetables are stored in the refrigerator compartment 20 , so that the relative humidity in the refrigerator compartment 20 is relatively high. The upper space of the refrigerator compartment 20 has a higher relative humidity than the lower space. Setting the drying chamber 30 in the upper space of the refrigerating chamber 20 (that is, in the upper half space of the refrigerating chamber 20 ) is not conducive to maintaining the dry state in the drying chamber 30 . Therefore, in some embodiments of the present invention, it is preferable to arrange the drying chamber 30 in the lower space of the refrigerating chamber 20 , that is, to arrange the drying chamber 30 in the lower half of the space in the refrigerating chamber 20 . That is to say, the height of the top plate (see top plate 322 in FIG. 3 ) of the drying chamber 30 in the refrigerating chamber 20 does not exceed the lower half of the entire height of the interior space of the refrigerating chamber 20 .

Referring to FIGS. 2 and 3 , in some embodiments, the drying chamber 30 may be constituted by a drawer-type sealed container. The drying chamber 30 may include a drawer body 31 and a female box 32 . The drawer body 31 is used for accommodating items to be stored, and may have a cavity with an opening at the top for accommodating the items to be stored. The female box body 32 may have a back plate 321 and a top plate 322 combined with the back plate 321 at respective rear ends, a bottom plate 323 and two opposite lateral side plates to form a drawer body 31 that can be drawn and accommodated. cavity. The front end of the female box body 32 is open, and the drawer body 31 can be pulled out and accommodated along the front-back direction of the refrigerator compartment 20 . In some embodiments, a drawer door 311 for pulling the drawer body 31 may be provided on the drawer body 31 , and a sealing strip 37 is provided at an edge of the drawer door 311 . In this way, when the drawer body 31 and the female seat box 32 are closed, the sealing strip 37 on the drawer door 311 can be sealed with the top plate 322 of the female seat box 32, the bottom plate 323, and the front ends of the two opposite lateral side plates. The front end opening of the base box 32 is sealed so that the drying chamber 30 is basically sealed.

In some embodiments, slideways can be provided on the two lateral side walls of the drawer body 31, and slide rails can be installed on the inner surfaces of the two opposite lateral side plates of the female seat box body 32, so that the drawer body 31 It is slidably installed on the female box body 32 .

In a further embodiment, the bottom plate 323 of the female base box 32 of the drying room 30 is disposed adjacent to the bottom surface of the inner space of the refrigerating room 20 . That is, the bottom plate 323 of the female box body 32 of the drying room 30 is disposed close to the bottom surface of the inner space of the refrigerating room 20, and there is a gap therebetween. In some embodiments, the bottom plate 323 of the female box 32 of the drying chamber 30 rests on the bottom surface of the inner space of the refrigerating chamber 20 . In other words, the drying chamber 30 is arranged at the bottom of the inner space of the refrigerating chamber 20 . In this way, the drying room 30 can be located at a position where the relative humidity of the refrigerating room 20 is lower.

In some embodiments, the drying chamber 30 has an air inlet 33 for the cooling airflow to flow into the drying chamber 30, and the drying chamber 30 is controllably communicated with the freezing chamber 10 through the air inlet 33, so that the freezing chamber The cooling air flow inside 10 is supplied to said drying chamber 30 in a controlled manner. After the low-temperature cooling air flows into the drying chamber 30 through the air inlet 33 , the temperature of the drying chamber 30 can be reduced and the humidity of the drying chamber 30 can be reduced further. The air inlet 33 may be disposed on a lateral side plate of the female base box 32 adjacent to the side wall of the freezing compartment 10 .

Correspondingly, an opening 16 is provided on the side wall of the freezing chamber 10 , and a ventilation passage 13 is provided on the partition 12 between the drying chamber 30 and the freezing chamber 10 , and the air inlet 33 communicates with the opening 16 through the ventilation passage 13 . Since the drying chamber 30 is located in the lower space of the refrigerating chamber 20 , and the freezing chamber 10 is laterally adjacent to the refrigerating chamber 20 , the opening 16 is disposed at the lower part of the side wall of the freezing chamber 10 . The cooling airflow in the lower part of the freezing chamber 10 can be controlledly supplied to the drying chamber 30 through the opening 16 , the ventilation channel 13 , and the air inlet 33 . In the embodiment of the present invention, since the cooling airflow passing into the drying chamber 30 comes from the bottom of the freezing chamber 10, the airflow entering the freezing chamber 10 will condense in the process of flowing from top to bottom, so that the air flowing into the drying chamber 30 The absolute humidity of the cooling air flow is low to avoid adverse effects on the drying chamber.

An air intake damper 34 may be provided at the air inlet 33 to introduce cooling airflow into the drying chamber 30 in a controlled manner. Of course, the air intake damper 34 can also be arranged in the ventilation channel 13 . The air intake damper 34 can be an electric damper, for example. Specifically, when the drying chamber 30 does not need air supply, the air intake door 34 is closed, and the cooling airflow inside the freezing chamber 10 does not flow to the drying chamber 30, and the flow direction of the air path in the refrigerator is shown in FIG. direction, the dotted arrow indicates the air return direction); when the drying chamber 30 needs air supply, the air intake damper 34 is opened, and the part of the cooling airflow inside the freezing chamber 10 flows to the air path flow in the drying chamber 30 refrigerator. Air intake damper 34 also can regulate the opening size of air intake. Specifically, when the drying chamber 30 requires a large air volume, the air intake door 34 increases the opening of the air supply port, and when the drying chamber 30 requires a small air volume, the air intake door 34 adjusts the opening of the air supply port small.

In an alternative embodiment, the air inlet 33 of the drying chamber 30 can also be directly communicated with the air duct 60, so that the airflow after the evaporator 50 is cooled and dehumidified directly flows into the drying chamber 30 through the air inlet 33 (without passing through the freezing chamber. 10 or cold room 20). In an alternative embodiment, when the air-cooled refrigerator 100 has two refrigerating chamber evaporators and a freezing chamber evaporator for respectively cooling the refrigerating chamber 20 and the freezing chamber 10, the airflow after being cooled and dehumidified by the refrigerating chamber evaporator can pass through The air inlet 33 directly flows into the drying chamber 30 (without passing through the refrigerating chamber 20).

The drying chamber 30 also has an air return port 35 for the gas in the drying chamber 30 to flow out of the drying chamber 30 . When the air inlet 33 blows air to the drying chamber 30 , the air with high humidity in the drying chamber 30 is displaced out of the drying chamber 30 through the return air outlet 35 . In some embodiments, the air return port 35 is disposed on the back plate 321 of the drying chamber 30 . The airflow flowing out through the return air port 35 of the drying chamber 30 can flow into the refrigerating chamber 20 , and circulate back into the air duct 60 along with the return air of the refrigerating chamber 20 .

In some embodiments, a return air damper 36 for closing or opening the return air opening 35 may be provided at the return air opening 35 . The return air damper 36 can be, for example, a one-way damper, that is, only the air from the drying chamber 30 goes out and the wind outside the drying chamber 30 cannot flow into the drying chamber 30 .

In some embodiments, the return air damper 36 can be a one-way flap. When the air intake damper 34 of the air inlet 33 is opened, the pressure inside the drying chamber 30 will increase due to the airflow entering the drying chamber 30. Under the effect of the action, the one-way sheet of the air return port 35 of the drying chamber 30 is opened outwards, and the air flow will take away the moisture in the drying chamber 30. In order to ensure that the moisture in the drying chamber 30 is fully taken away, the air inlet damper 34 can be continuously opened for a predetermined time, such as 3 minutes (the length of time can be set according to the volume of the drying chamber 30 and the area of the air inlet 33). Then the air intake damper 34 is closed, because there is no continuous air entering the drying chamber 30, the pressure in the drying chamber 30 will reduce, and the one-way plate of the drying chamber 30 air return port 35 will automatically close under the effect of dead weight. At this time, a low-temperature airtight space is formed inside the drying chamber 30 . That is, the cooling gas in the drying chamber 30 cannot flow out of the drying chamber 30 through the air return port 35 ; and the gas with a high relative humidity outside the drying chamber 30 cannot enter the drying chamber 30 either. The air in the drying chamber 30 conducts heat exchange with the external environment, so that its temperature rises, thereby reducing the relative humidity of the air in the drying chamber 30 .

In some embodiments, the temperature and/or humidity in the drying chamber 30 can be used to control the opening or closing of the air intake door 34 . Correspondingly, the air-cooled refrigerator 100 may further include a temperature sensor and a humidity sensor (not shown in the figure). A temperature sensor and a humidity sensor are respectively provided in the drying chamber 30 to sense the temperature and humidity inside the drying chamber 30 respectively. The air intake door 34 at the air intake 33 may be configured to be opened or closed in a controlled manner according to the temperature sensed by the temperature sensor and/or the humidity sensed by the humidity sensor. In some embodiments, when the relative humidity in the drying chamber 30 is higher than a preset humidity value, the air intake damper 34 is opened to supply cooling air into the drying chamber 30 . In some embodiments, when the temperature inside the drying chamber 30 is higher than a preset temperature value, the air intake damper 34 is opened to supply cooling air into the drying chamber 30 . In some embodiments, when the relative humidity value in the drying chamber 30 is lower than the preset humidity value, the air intake damper 34 is closed; or the air intake damper 34 is closed after opening for a predetermined time; When the temperature value is lower than the preset temperature value, the air intake damper 34 is closed.

In some embodiments, the return air damper 36 can also be an electronically controlled damper, which can automatically open and close synchronously with the air intake damper 34 at the air inlet 33 .

Table 1 shows the temperature and humidity comparison data of the refrigerating chamber 20 and the drying chamber 30 of the air-cooled refrigerator 100 according to a specific embodiment of the present invention. It can be seen from Table 1 that the relative humidity of the drying room 30 is about 16% lower than that of the refrigerating room 20. If a large amount of vegetables are placed in the refrigerating room 20, the relative humidity in the refrigerating room 20 can reach 65%. If the dry goods are put into the cold storage room 20, the dry goods are very easy to regain moisture, and it is easy to mold after a long time, causing the dry goods to deteriorate. However, in the present invention, the dry goods placed in the drying chamber 30 are relatively airtight and are less affected by the humidity of the refrigerating chamber 20, so the relative humidity of the drying chamber 30 can be guaranteed to be lower than 40%. So that the dry goods can be stored for a long time without regaining moisture and deterioration.

Table 1 Comparative data of cold room and dry room temperature humidity

Drying room (℃) Drying room (%RH) Refrigerator (℃) Refrigerator (%RH) average value 7.0 26.0 5.7 43.3

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (6)

1. An air-cooled refrigerator, comprising a freezing chamber and a refrigerating chamber laterally adjacent to the freezing chamber, characterized in that, the air-cooling refrigerator also includes a drying chamber with an independent closed space, which is arranged in the In the lower space of the refrigerator; where Described drying room is made of drawer type airtight container, comprises: a drawer body for holding items to be stored; and a female box having a back panel and a top panel, a bottom panel and two opposite lateral side panels joined to said back panel at respective rear ends to form a cavity for drawably accommodating said drawer body; wherein The bottom plate of the female base box of the drying chamber is arranged adjacent to the bottom surface of the inner space of the refrigerating chamber or rests on the bottom surface; The drying chamber has an air inlet through which cooling air flows into the drying chamber, and the drying chamber is controllably communicated with the freezing chamber through the air inlet; and The air inlet is arranged on the lateral side plate of the female base box adjacent to the side wall of the freezing chamber, so as to supply the cooling airflow from the lower part of the freezing chamber to the drying chamber. 2. The air-cooled refrigerator according to claim 1, characterized in that, An electric damper is set at the air inlet. 3. The air-cooled refrigerator according to claim 1, characterized in that, The drying chamber also has an air return port for the air in the drying chamber to flow out of the drying chamber, and the air return port is arranged on the back plate of the drying chamber. 4. The air-cooled refrigerator according to claim 3, characterized in that, A one-way damper is set at the air return port. 5. The air-cooled refrigerator according to claim 1, characterized in that, The drawer body is provided with a drawer door for pulling the drawer body, and a sealing strip is provided at an edge of the drawer door. 6. The air-cooled refrigerator according to claim 2, further comprising: a temperature sensor disposed in the drying chamber for sensing the temperature in the drying chamber; and a humidity sensor, arranged in the drying chamber, for sensing the humidity in the drying chamber, The electric damper is configured to be opened or closed in a controlled manner according to the temperature sensed by the temperature sensor and/or the humidity sensed by the humidity sensor.